<template>
  <div class="bottom-bar">
    <div class="button">
      <check-button
        :isSelect="isTotalSelect"
        @click.native="totalCheck"
      ></check-button>
      <span>全选</span>
    </div>

    <div class="total">
      合计 :
      <span>￥{{ totalPrice }}</span>
    </div>

    <div class="gocalc" @click="calcClick">结算({{ checkLength }})</div>
  </div>
</template>

<script>
import CheckButton from "./CheckButton";
import { mapGetters } from "vuex";
export default {
  name: "CartBottomBar",
  components: {
    CheckButton,
  },
  computed: {
    ...mapGetters(["cartList"]),
    totalPrice() {
      return this.cartList
        .filter((item) => {
          return item.checked;
        })
        .reduce((preValue, item) => {
          return preValue + item.price * item.count;
        }, 0)
        .toFixed(2);
    },
    checkLength() {
      return this.cartList.filter((item) => {
        return item.checked;
      }).length;
    },
    isTotalSelect() {
      // return ! this.cartList.filter(item => {
      //   return !item.checked
      // }).length
      if (this.cartList.length === 0) return false;
      return !this.cartList.find((item) => !item.checked);
    },
  },
  methods: {
    totalCheck() {
      if (this.isTotalSelect) {
        this.cartList.forEach((item) => (item.checked = false));
      } else {
        // this.cartList.filter(item => {
        //   if (!item.checked)
        //   item.checked = true
        // })
        this.cartList.forEach((item) => (item.checked = true));
      }
    },
    calcClick() {
      if (!this.cartList.find((item) => item.checked)) {
        this.$toast.show("请选择要结算的商品", 1500);
      } else {
        this.$toast.show("Sorry! 该功能还未开发~", 1500);
      }
    },
  },
};
</script>

<style scoped>
.bottom-bar {
  height: 40px;
  background-color: #eee;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  box-shadow: 0 -2px 3px rgba(0, 0, 0, 0.2);
}

.button {
  display: flex;
  align-items: center;
  margin-left: 10px;
}

.button span {
  margin-left: 10px;
}
.total span {
  color: rgba(250, 131, 51, 0.842);
}
.gocalc {
  background-color: var(--color-tint);
  line-height: 40px;
  padding: 0 20px;
  color: #fff;
}
</style>